Affirm
Affirm12h ago

Senior Software Engineer, Fullstack (Open Banking)

United KingdomRemote UkRemotesenior
EngineeringSoftware Engineer
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Quick Summary

Overview

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.

Technical Tools
EngineeringSoftware Engineer

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.

The Engineering team builds systems that power Affirm’s mission. We take pride in our craft, building reliable, performant, and scalable solutions that touch every part of the business. Whether we’re enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing experiences, our focus is on solving complex problems through exceptional engineering.

As part of the Consumer Payments team at Affirm, you'll be working on Affirm's Payment Processing Network. These systems currently process billions of dollars in payments each year and are vital components in Affirm's platform.

We are looking for highly motivated software engineers who are passionate about building high throughput, high availability systems that can grow alongside a high growth business.

You will be working alongside multiple partner teams across Europe and the US to support feature development, international expansion as well as moving the dial on key financial metrics for the business.

Responsibilities

~1 min read
  • You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery.

  • You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs.

  • You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them.

  • You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on-call efforts.

  • You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks.

  • You will help develop talent on your team by providing feedback and guidance, and leading by example.

  • You have a total of 4+ years of experience as a software engineer.

  • You are experienced in designing, developing and launching backend systems at scale technologies like Python, Kotlin, AWS, MySQL, and Kubernetes.

  • You have experience shipping web apps using declarative UI frameworks like React or Vue.

  • Familiarity with the Open Banking industry

  • You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. You write high quality code that is easily understood and used by others.

  • You are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safely.

  • · Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders.

  • You have strong verbal and written communication skills that support effective collaboration with our global engineering team.

What We Offer

~2 min read
Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents
Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses
Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge
ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount

Listing Details

Posted
April 9, 2026
First seen
March 23, 2026
Last seen
April 9, 2026

Posting Health

Days active
17
Repost count
0
Trust Level
65%
Scored at
April 9, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trustcandidate experience
Affirm
Affirm
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We’re excited to announce that Affirm is now a remote-first company!

Employees
3k+
Founded
2012
View company profile
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AffirmSenior Software Engineer, Fullstack (Open Banking)